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zysi [14]
2 years ago
13

Write a equivalent expression for 12a+60

Mathematics
1 answer:
viva [34]2 years ago
8 0

Answer: 12(a+5)

Step-by-step explanation: factor out 12 from the expression

ANSWER 12(a+5)

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Simply each expression by combining like terms 2n -5 + 3p -5n + 10p
Shtirlitz [24]
7n +13p + -5 = 15 Hope I helped
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2 years ago
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Helpppppppppp asappppppppp 20 points
Lesechka [4]

Here’s a small hint: “miles per hour”

Put the amount of miles over the amount of hours then calculate the amount from there! It’s either the 2nd option or the 4th one! Hope it’s helpful!

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Drag the tiles to the correct boxes to complete the pairs. Match the systems of equations with their solutions.
devlian [24]
<h3>Answer:</h3>

4, 1, 2, 3 . . . . . the systems of equations corresponding to the given solutions, in order

<h3>Step-by-step explanation:</h3>

When there are this many to do, it is convenient to let a calculator or spreadsheet help. Most will work best with integer coefficients, so the pairs of equations can be written ...

1.

  • x - y = 25
  • 2x + 3y = 180 . . . solution (51, 26)

2.

  • 2x - 3y = -5
  • 11x + y = 550 . . . solution (47, 33)

3.

  • x - y = 19
  • -12x + y = 168 . . . solution (-17, -36)

4. Here, we have a problem. The given equations don't match any solutions. The only remaining solution is (-31, -56), and it gives a value of -6 for the first equation, not 6. The second equation needs parentheses to make it work. We think your problem is ...

... 2x -y = -6, (x -305)/3 = 2y

Recast the way the others are above, these equations become ...

  • 2x - y = -6
  • x - 6y = 305 . . . solution (-31, -56)

_____

<em>Comment on solution to systems of equations</em>

The solution to ...

  • ax +by = c
  • dx +ey = f

is ...

  • x = (bf -ec)/(bd -ea)
  • y = (cd -a·f)/(bd -ea) . . . . . (same denominator as for x)

This is a modified form of Cramer's rule. It is modified in that both numerator and denominator have the terms swapped (are the negative of the terms in the classic Cramer's rule). This form can be easy to remember, as the pattern is fairly simple. (Look at where the coefficients are in the equations. Use your spatial memory to remember the pattern.)

<u>Example</u>:

Applying these solution equations to system (4), we have ...

... x = ((-1)·305 -(-6)(-6))/((-1)·1 -(-6)·2) = -341/11 = -31

... y = ((-6)·1 -305·2) = -616/11 = -56

6 0
3 years ago
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Given two numbers which is always greater, LCM or GCF
ikadub [295]
" always " is the wrong word....should be sometimes

usually the LCM is greater....
example : 2 and 4.....LCM = 8, GCF = 2
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However, if ur 2 numbers are the same...
2 and 2.....LCM = 2 and GCF = 2
4 and 4....LCM = 4 and GCF = 4
6 0
2 years ago
Is the sequence "109,104,99,94", finite?
Law Incorporation [45]

Answer:

NO.

Step-by-step explanation:

The common difference is -4 and you can continue to add -4  for ever!!

5 0
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